server/lib/activitypub/process/process-like.ts

   1 import { ActivityLike } from '../../../../shared/models/activitypub'
   2 import { retryTransactionWrapper } from '../../../helpers/database-utils'
   3 import { sequelizeTypescript } from '../../../initializers'
   4 import { AccountVideoRateModel } from '../../../models/account/account-video-rate'
   5 import { ActorModel } from '../../../models/activitypub/actor'
   6 import { getOrCreateActorAndServerAndModel } from '../actor'
   7 import { forwardVideoRelatedActivity } from '../send/utils'
   8 import { getOrCreateVideoAndAccountAndChannel } from '../videos'
   9
  10 async function processLikeActivity (activity: ActivityLike) {
  11   const actor = await getOrCreateActorAndServerAndModel(activity.actor)
  12
  13   return retryTransactionWrapper(processLikeVideo, actor, activity)
  14 }
  15
  16 // ---------------------------------------------------------------------------
  17
  18 export {
  19   processLikeActivity
  20 }
  21
  22 // ---------------------------------------------------------------------------
  23
  24 async function processLikeVideo (byActor: ActorModel, activity: ActivityLike) {
  25   const videoUrl = activity.object
  26
  27   const byAccount = byActor.Account
  28   if (!byAccount) throw new Error('Cannot create like with the non account actor ' + byActor.url)
  29
  30   const { video } = await getOrCreateVideoAndAccountAndChannel({ videoObject: videoUrl })
  31
  32   return sequelizeTypescript.transaction(async t => {
  33     const rate = {
  34       type: 'like' as 'like',
  35       videoId: video.id,
  36       accountId: byAccount.id
  37     }
  38     const [ , created ] = await AccountVideoRateModel.findOrCreate({
  39       where: rate,
  40       defaults: rate,
  41       transaction: t
  42     })
  43     if (created === true) await video.increment('likes', { transaction: t })
  44
  45     if (video.isOwned() && created === true) {
  46       // Don't resend the activity to the sender
  47       const exceptions = [ byActor ]
  48
  49       await forwardVideoRelatedActivity(activity, t, exceptions, video)
  50     }
  51   })
  52 }